Crystallization kettle for raw material medicine production
By installing auger plates and a telescopic motor in the crystallization reactor, the problem of clogging the discharge port of the crystallized material was solved, enabling smooth discharge of the material and improving the efficiency of the crystallization reactor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI FUDAN FORWARD PHARM CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-10
AI Technical Summary
During the use of existing crystallization kettles, the crystalline material is prone to clogging the discharge port, affecting normal material discharge operations.
An auxiliary rod is installed at the end of the rotating rod and connected to an auger plate. The inner wall of the vessel is cleaned by a scraper. The rotating rod is designed to use the auger plate to output the material upwards and downwards. Combined with the telescopic motor to push the vessel lid up and down, the material is smoothly discharged.
It effectively avoids clogging at the discharge port, improves the practicality of the crystallizer, and ensures smooth material discharge.
Smart Images

Figure CN224100032U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to crystallization kettle technical field, concretely is a raw material medicine production crystallization kettle. BACKGROUND
[0002] Crystallization kettle is the equipment for realizing crystallization through the rapid cooling of the cold water or refrigerant water in the interlayer after the material mixing reaction in the raw material medicine production process. It is widely used in chemical industry, pharmacy and other industries, and is one of the key equipment in the raw material medicine production.
[0003] The existing crystallization kettle is usually provided with a scraper for treating the inner wall of the kettle to facilitate the post cleaning and avoid the attachment of crystals on the inner wall of the kettle during use, such as the Chinese utility model patent with the publication number CN222585615U, which specifically discloses a novel crystallization kettle.
[0004] With the continuous improvement of the quality requirements of the pharmaceutical industry on raw material medicines, the technology of the crystallization kettle is also continuously improving. However, people will find that the material after crystallization in the crystallization kettle is easily blocked in the discharge port, thereby affecting the normal discharge operation. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a raw material medicine production crystallization kettle to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a raw material medicine production crystallization kettle, including kettle body, the kettle body top is provided with kettle cover, the kettle body lower part is provided with discharge port, the position close to the discharge port of kettle body is fixed with support plate, is provided with telescopic motor on the support plate, is provided with feeding opening on the kettle cover, the back of kettle cover is fixed with connecting plate, the output end of telescopic motor is fixed on the connecting plate, the inside of kettle body is provided with rotating rod, rotating rod rotation is connected on the kettle cover, the top of kettle cover is fixed with drive motor, the drive shaft of drive motor is connected with rotating rod, the rotating rod is evenly provided with a plurality of stirring blades, the side of stirring blade is fixed with scraper, the scraper is attached to the inner wall of kettle body, the end of rotating rod is fixed with auxiliary rod, the auxiliary rod extends to the discharge port and is connected with auger piece, the auger piece is attached to the inner wall of discharge port.
[0007] By adding raw material medicine into the kettle body, starting the drive motor to drive the rotating rod to rotate, using the rotating rod to drive the stirring blade to stir the raw material medicine, so that the raw material medicine crystallizes in the kettle body. In the process, the inner wall of the kettle body is cleaned by the scraper to avoid the attachment of crystals on the inner wall of the kettle body.
[0008] During the stirring process, the driving motor drives the rotating rod to rotate clockwise, so that the auger piece does not output the raw medicine crystals downward, but continuously outputs upward. When it is necessary to discharge, the driving motor can be started in reverse output, so that the rotating rod rotates counterclockwise, and the raw medicine can be output downward by the auger piece to discharge the crystals.
[0009] The telescopic motor can also be used to push the cover upward, and the rotating rod and the auxiliary rod are pushed out of the kettle body by the cover, so that the rotating rod and the auxiliary rod are maintained. The cover and the kettle body are provided with a sealing structure.
[0010] As preferred by the utility model, a valve is arranged below the discharge port to control the opening and closing of the discharge port.
[0011] As preferred by the utility model, an outer shield is arranged outside the kettle body, and a medium pipe is arranged between the kettle body and the outer shield. The medium pipe is used to inject cooling medium to realize rapid cooling of the inside of the kettle body.
[0012] As preferred by the utility model, the medium pipe is arranged in a spiral shape on the kettle body, and the spiral-shaped medium pipe is used to prolong the flow time of the cooling medium in the medium pipe.
[0013] As preferred by the utility model, the medium pipe is provided with an injection port and a discharge port at both ends, and the injection port and the discharge port penetrate through the outer shield.
[0014] As preferred by the utility model, the telescopic motor is provided with positioning rods parallel to each other at the side edges, the positioning rods are fixed at the ends of the supporting plates, and the positioning rods penetrate through the connecting plates. The positioning rods are arranged to improve the lifting stability of the cover.
[0015] Compared with the prior art, the utility model has the advantages that:
[0016] The utility model sets the auxiliary rod at the end of the rotating rod, and sets the auger piece in the discharge port by the auxiliary rod, so that the raw medicine crystals can be discharged by the auger piece during discharging, the risk of clogging of the discharge port is reduced, and the practicality of the device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 The utility model is a three-dimensional structure schematic Figure 1 ;
[0018] Figure 2 The utility model is a three-dimensional structure schematic Figure 2 ;
[0019] Figure 3 The utility model is a three-dimensional structure schematic
[0020] Figure 4 The utility model is a three-dimensional structure schematic
[0021] In the figure: 1, kettle body; 101, discharge port; 1011, valve; 102, support plate; 2, kettle cover; 201, feeding port; 202, connecting plate; 3, telescopic motor; 4, positioning rod; 5, driving motor; 6, rotating rod; 601, stirring blade; 602, scraper; 7, auxiliary rod; 701, auger piece; 8, medium pipe; 801, injection port; 802, discharge port; 9, outer shroud. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0023] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0024] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "installed", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0025] Please refer to Figures 1-4The utility model provides a technical scheme: a crude drug production crystallization kettle, including kettle body 1, the kettle body 1 top is provided with kettle cover 2, and the kettle body 1 lowermost part is provided with discharge gate 101, and the kettle body 1 is fixed with support plate 102 close to discharge gate 101's position, is provided with telescopic motor 3 on support plate 102, is provided with feeding gate 201 on kettle cover 2, and kettle cover 2 back is fixed with connecting plate 202, and the output of telescopic motor 3 is fixed on connecting plate 202, and the inboard of kettle body 1 is provided with rotating rod 6, and rotating rod 6 is rotatably connected on kettle cover 2, and kettle cover 2 top is fixed with drive motor 5, and the driving shaft of drive motor 5 is connected with rotating rod 6, and rotating rod 6 is evenly provided with a plurality of stirring vane 601, and stirring vane 601 side is fixed with scraper 602, and scraper 602 is attached with kettle body 1 inner wall, and rotating rod 6 tail end is fixed with auxiliary rod 7, and auxiliary rod 7 extends to discharge gate 101 and is connected with auger piece 701, and auger piece 701 is attached with discharge gate 101 inner wall.
[0026] By adding crude drug into kettle body 1, start drive motor 5 and drive rotating rod 6 to rotate, use rotating rod 6 to drive stirring vane 601 to stir crude drug, make crude drug crystallize in kettle body 1, in the process, through scraper 602 to clean kettle body 1 inner wall, avoid the attachment crystallization of kettle body 1 inner wall.
[0027] During the stirring process, drive motor 5 drives rotating rod 6 to rotate clockwise, so that auger piece 701 does not output the crystallization of crude drug downward, but continuously outputs upward. When discharging is needed, drive motor 5 can be started in reverse to output, so that rotating rod 6 rotates counterclockwise, and the crystallization of crude drug can be output downward by auger piece 701.
[0028] Telescopic motor 3 can also be used to push kettle cover 2 upward, and rotating rod 6 and auxiliary rod 7 are pushed out of kettle body 1 by kettle cover 2, so that they can be maintained. A sealing structure is provided between kettle cover 2 and kettle body 1.
[0029] Further, a valve 1011 is arranged below the discharge gate 101 to control the opening and closing of the discharge gate 101.
[0030] Further, an outer shield 9 is arranged outside the kettle body 1, and a medium pipe 8 is arranged between the kettle body 1 and the outer shield 9. The medium pipe 8 is used to inject cooling medium to rapidly cool the inside of the kettle body 1.
[0031] Further, the medium pipe 8 is arranged in a spiral shape on the kettle body 1, and the spiral-shaped medium pipe 8 is used to prolong the flow time of the cooling medium in the medium pipe 8.
[0032] Further, the medium pipe 8 is provided with an inlet 801 and an outlet 802 at both ends, and the inlet 801 and the outlet 802 penetrate through the outer shield 9.
[0033] Further, the telescopic motor 3 side is provided with positioning rods 4 parallel to each other, the ends of the positioning rods 4 are fixed with the support plate 102, and the positioning rods 4 penetrate the connecting plate 202, and the positioning rods 4 are arranged to improve the lifting stability of the kettle cover 2.
[0034] In summary, when the crystallization kettle is used, the raw material medicine is added into the kettle body 1 from the feeding port 201, after the addition, the driving motor 5 is started to drive the rotating rod 6 to rotate, so that the rotating rod 6 drives the stirring blade 601 and the scraper 602 to rotate, the stirring blade 601 is used to mix and stir the material, and the scraper 602 is used to scrape the material on the inner wall of the kettle body 1.
[0035] When cooling is needed, only the cooling medium is injected into the injection port 801, so that the cooling medium enters the medium pipe 8 to cool and cool the inside of the kettle body 1, and finally the cooling medium is discharged from the discharge port 802. After the crystallization is completed, the valve 1011 is opened, and the material is discharged from the discharge port 101. During the process, the driving motor 5 is started in reverse output to drive the rotating rod 6 to rotate in reverse, so that the rotating rod 6 drives the auger pieces 701 on the auxiliary rod 7 to continuously output the material outward, so as to achieve the effect of auxiliary discharging.
[0036] The telescopic motor 3 can also be started to drive the kettle cover 2 to move upward through the connecting plate 202, so that the kettle cover 2 drives the rotating rod 6 and the auxiliary rod 7 to exit from the kettle body 1, so as to facilitate maintenance.
[0037] It is worth noting that: the whole device is controlled by the total control button, since the control button matched device is a commonly used device, which belongs to the existing mature technology, and the electrical connection relationship and the specific circuit structure are not repeated here.
[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A crystallization vessel for bulk drug production, characterized by: The utility model relates to a kind of chemical reaction kettle, including cauldron body (1), the cauldron cover (2) is provided above cauldron body (1), cauldron body (1) lower portion is provided with discharge port (101), cauldron body (1) is fixed with support plate (102) close to the position of discharge port (101), support plate (102) is provided with telescopic motor (3), cauldron cover (2) is provided with feeding port (201), cauldron cover (2) back is fixed with connecting plate (202), the output end of telescopic motor (3) is fixed on connecting plate (202), cauldron body (1) inside is provided with rotating rod (6), rotating rod (6) is rotatably connected in cauldron cover (2), cauldron cover (2) upper portion is fixed with drive motor (5), the driving shaft of drive motor (5) is connected with rotating rod (6), rotating rod (6) is uniformly provided with several stirring vane (601), stirring vane (601) side is fixed with scraper (602), scraper (602) is attached with cauldron body (1) inner wall, rotating rod (6) tip is fixed with auxiliary rod (7), auxiliary rod (7) extends to discharge port (101) and is connected with auger piece (701), auger piece (701) is attached with discharge port (101) inner wall.
2. A crystallization reactor for the production of bulk drug substances according to claim 1, characterized in that: The valve (1011) is arranged below the discharge port (101).
3. A crystallization reactor for the production of bulk drug substances according to claim 1, characterized in that: The outer shield (9) is arranged outside the cauldron body (1).
4. A crystallization kettle for the production of bulk drug substances according to claim 3, characterized in that: The medium pipe (8) is arranged in a spiral shape on the cauldron body (1).
5. A crystallization vessel for the production of bulk drug substances according to claim 3, characterized in that: The medium pipe (8) is provided with an inlet (801) and an outlet (802) at both ends, and the inlet (801) and the outlet (802) penetrate the outer shield (9).
6. A crystallization reactor for the production of bulk drug substances according to claim 1, characterized in that: The positioning rods (4) are arranged on the side of the telescopic motor (3) and are parallel to each other, the ends of the positioning rods (4) are fixed to the support plate (102), and the positioning rods (4) penetrate the connecting plate (202).
Citation Information
Patent Citations
Novel crystallization kettle
CN222585615U